340 ' J. M. Ordway on Waterglass. 
being a compound apparently incapable of more than a moment- 
* ordinary pressure of the atmosphere. 
ca 
— and opaque, but by standing a day or two it contracts and 
e 
comes firm and transparent. He says further that “ pa 
bs . 
somewhat diluted, it either gives no precipitate, or g} 
y : Pp ily reco ‘zed and 
